Excelsior-cutting machine.



No. 634,895. Patented Oct. l7, I899.

J. A. MANNING. EXCELSIOB CUTTING MACHINE.

(Application filed Oct. 15, 1898.)

(No Model.)

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PATNT JAMES ALBERT MANNING, OF TORONTO, CANADA, ASSIGNOR OF ONE-HALE TODAVID FREDERICK MAGUIRE, OF SAME PLACE.

EXCE LSlOR-CUTTING MACHINE.

SPECIFICATION formingpart of Letters Patent No. 634,895, dated October17, 1899. Application filed October 15, 1898, gerial No. 698,645. (Nomodel.)

To all whom it may concern.-

Be it known that 1, JAMES ALBERT MAN NING, commercial traveler, of thecity of Toronto, in the county of York, in the Province of Ontario,Canada, have invented certain new and useful Improvements in Excelsior-Outting Machines, of whichthe following is a specification.

My invention relates to improvements in lo rotary cutters designed moreparticularly for slitting, shavings produced from a block in a machinefor making excelsior packing; and the object of the invention is todesign a device of this class whereby the shavings may :5 be slit freefrom dust cheaply, quickly, and effectually with aminimum amount ofpower; and it consists, essentially, of two rotary cutters, eachcomprising a series of disks suitably separated by collars right angularin cross-section and arranged so that the edges of the disks of Onecutter extend between and pass the peripheral edges of the disks of theadjacent opposite cutters, the shaving being fed up between the cuttingedges, which are the edges which pass each other, suitable strippers forthe rotary cutters being provided,and a feeding device to carry theshavings between the cutters, as hereinafter more particularlyexplained.

Figure 1 is a perspective View of a machine for cutting shavings,showing my slitting r0- tary cutters in proper relative position. Fig. 2is a plan view of the cutters. Fig. 3 is a cross section. Fig, 4 is adetail of the stripper.

In the drawings like letters of referenceiudicate corresponding parts ineach figure.

A is the frame of the machine. B is a disk-wheel provided with suitablecutters O to cut longitudinal flat shavings out of the block D. Thesefiat shavings are carried up, by the belt E, supported on suitablepulleys F and G, journaled in the frame of the machine, to the rotarycutters. The surface of the belt is preferably roughened, as indicatedin Figs. 1 and 3.

II and I are the rotary cutters, which are supported in suitablebearings preferably above the conveying-belt E. The rotary cutter H ismade up of a series of disks it, right angular in cross-sectionnvithperipheral sharp edges between the face and the periphery on each side,and separating-collars h of corresponding width to the disks h, orsubstantially so, being of course necessarily a shade wider in order toadmit of the cuttersrl' of the opposite rotary cutter I.

The disks of the opposite rotary cutter I are identically formed ofsubstantially the same width, so that they will extend between thespaces between the disks h, being justa shade narrower than such spaces,so that they may pass the contacting peripheral face edges of the disksh. Collars t" are provided be tween the disks 1', similar to the collarsh between the disks h. Of course these disks and collars may be cut outof solid metal as long as spaces are left between them, as hereinbeforereferred to, although I preferably form them in the Way described. Itwill also be understood that, the peripheral face of each disk may begrooved, it being essentiahof course,that the cutting edges are providedone on each side of the disk and extend around the entire peripherythereof. The shaving is fed as indicated in Fig. 3.

K is the stripper for the rotary cutter H, and L is the stripper for therotary cutter I. The stripper K is formed of a series of teeth 70, whichare secured to a suitable crossbar It by a suitable plate 70 Thecross-bar is supported in the ends on a suitable stand ard M. Thestripper Ii is-similarly formed, secured, and supported, being providedwith suitable teeth Z.

In Fig. 3 I show the passage of the shaving up through the rotarycutter, such shaving being fed by the endless belt E, which has aroughened surface, as hereinbefore described. The rotary cutters rotatein the direction indicated by arrow. The strippers K and L, acting onthe cutters, prevent the shavings or slitted wood passing and filling upbetween each set of disks on each side, also serving to guide them rightthrough between the strippers and out.

I find in practice that by using the cutters such as I describe I amenabled to produce shavings cut into strips of equal width, as there areabsolutelyno broad shavings ejected from my cutters. Consequently the ma10o terial which I produce is of the best quality it is possible toobtain. I also find in. practiee that in feeding the shaving the naturalcurl of the shaving causes the ends to engage with the roughened surfaceof the belt,which is an important desideratum, as such roughened surfaceeffectually grips the ends of the shaving, thereby retaining it inposition as it is being fed between the cutters.

Vhat I claim as my invention is- In combination the rotary cutters andthe strippers depending between the same, the endless belt provided withan adhesive or roughened carrying-surface and supported on suitablerollers, so that the feeding portion of the belt is in a verticalposition directly underneath the center of the cutters and the

